MC
Big Idea Negative numbers help us to model many real world situations. Essential Question #2: How can I add integers? Notes from class: The nuber lines, there can also be vertical number lines. QA. Write the addition sentences illustrated by each figure.
Ans.a) The addition sentences:
1. -3+(-4)= -7
2. -3+4= 1
3. -4+11= 7
4. 5+(-8)= -3 QB. Illustrate each addition problem on a number line, and give the answers. 1. -5+8 2. -4+-3 3. -2+-3+10
Ans.b)
QC. When you add two integers, does the order of the numbers make a difference? Illustrate your answers by showing each of these pairs of sums on a number line. 1. -5+10 and 10+-5 2. -4+-6 and -6+-4 3. 8+-8 and -8+8 4.6+-7 and -7+6
So, at the end we can say that the order of the number don't make a difference when we add two integers. 2.1 FU
Q1.You can think of scoring in MathMania as follows: When a team answers a question correctly, a positive integer is added to their score. When a team aswers a question incorrectly, a negative integer is added to their score. For each of the following situation, write an addition sentence that will give the team's score. Assume each team starts with 0 points. a) The Brainacs answers a 200-point question correctly and a 150-point question incorrectly. b) The Aliens answer a 100-point question correctly and a 100-point question incorrectly. c) The Prodigies answer a 50-point question incorrectly, a 100-point question incorrectly, and a 250-point correctly.
Ans. a) Brainacs= 0+200+(-150)
= 50 points
b) Aliens= 0+100+(-100)
= 0 points
c) Prodigies= 0+(-50)+(-100)=250
=100 points Q2. Illustrate each addition problem on a number line and give the answers.
a) -2+2 b)8+-8 c) -1+1
Q3. What happens when you add opposites? Explain how you know your answer is correct.
Ans. When we add opposites the answer comes into 0 unit, because the positive number and the negative number of the same number cancle each other.
MC
Big Idea
Negative numbers help us to model many real world situations.
Essential Question #2: How can I add integers?
Notes from class: The nuber lines, there can also be vertical number lines.
QA. Write the addition sentences illustrated by each figure.
Ans.a) The addition sentences:
1. -3+(-4)= -7
2. -3+4= 1
3. -4+11= 7
4. 5+(-8)= -3
QB. Illustrate each addition problem on a number line, and give the answers.
1. -5+8 2. -4+-3 3. -2+-3+10
Ans.b)
QC. When you add two integers, does the order of the numbers make a difference? Illustrate your answers by showing each of these pairs of sums on a number line.
1. -5+10 and 10+-5 2. -4+-6 and -6+-4
3. 8+-8 and -8+8 4.6+-7 and -7+6
So, at the end we can say that the order of the number don't make a difference when we add two integers.
2.1 FU
Q1.You can think of scoring in MathMania as follows: When a team answers a question correctly, a positive integer is added to their score. When a team aswers a question incorrectly, a negative integer is added to their score. For each of the following situation, write an addition sentence that will give the team's score. Assume each team starts with 0 points.
a) The Brainacs answers a 200-point question correctly and a 150-point question incorrectly.
b) The Aliens answer a 100-point question correctly and a 100-point question incorrectly.
c) The Prodigies answer a 50-point question incorrectly, a 100-point question incorrectly, and a 250-point correctly.
Ans. a) Brainacs= 0+200+(-150)
= 50 points
b) Aliens= 0+100+(-100)
= 0 points
c) Prodigies= 0+(-50)+(-100)=250
=100 points
Q2. Illustrate each addition problem on a number line and give the answers.
a) -2+2 b)8+-8 c) -1+1
Q3. What happens when you add opposites? Explain how you know your answer is correct.
Ans. When we add opposites the answer comes into 0 unit, because the positive number and the negative number of the same number cancle each other.